function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bate, Raymond H. & Horne, David J. & Horne, Sarah E.', 2],
    ['Cusminsky, G. C. & Whatley, Robin', 1],
    ['Ma, Shunxin & Yu, Na', 1],
    ['Meisch, Claude & Smith, Robin J. & Martens, Koen', 6],
    ['Okubo, Ichiro & Terauchi, Makoto', 1],
    ['Peng, Ping & Zhai, Dayou & Smith, Robin J. & Wang, Qianwei', 1],
    ['RAUSCH, LEA & STOICA, MARIUS & LAZAREV, SERGEI', 2],
    ['Sabater, Lara Milena & Monferran, Mateo Daniel & Higuti, Janet', 3],
    ['Sabina, D. & Díaz, Analía R. & García, Adriana', 2],
    ['Savatenalinton, Sukonthip', 2],
    ['Smith, Robin J. & Janz, Horst & Okubo, Ichiro', 1],
    ['Smith, Robin James & Zhai, Dayou & Chang, Cheon Young', 3],
    ['Wang, Qianwei & Horne, David J. & Fan, Jiawei & Wen, Ruilin', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);